package com.boruan.qq.zxgylibrary.ui.widgets;

import android.content.Context;
import android.util.AttributeSet;
import android.widget.ScrollView;

/**
 * Created by 崔琦 on 2019/8/8.
 * des: 自定义ScrollView
 */

public class ObservableScrollView extends ScrollView {
    public interface ScrollViewListener{
        void onScrollChanged(ObservableScrollView scrollView, int x, int y,
                             int oldx, int oldy);
    }
    private ScrollViewListener scrollViewListener= null;
    public ObservableScrollView(Context context) {
        super(context);
    }
    public ObservableScrollView(Context context, AttributeSet attrs,
                                int defStyle){
        super(context, attrs, defStyle);
    }
    public ObservableScrollView(Context context, AttributeSet attrs){
        super(context, attrs);
    }
    public void setScrollViewListener(ScrollViewListener scrollViewListener){
        this.scrollViewListener = scrollViewListener;
    }
    @Override
    protected void onScrollChanged(int x, int y, int oldx, int oldy){
        super.onScrollChanged(x,y,oldx,oldy);
        if(scrollViewListener!=null){
            scrollViewListener.onScrollChanged(this,x,y,oldx,oldy);
        }
    }
}
